underestimate
US /ˌʌn.dɚˈes.tə.meɪt/
UK /ˌʌn.dɚˈes.tə.meɪt/
1.
estimate (something) to be smaller or less important than it actually is
:
•
Never underestimate the power of a good book.
•
He tends to underestimate the difficulty of the task.
estimate (something) to be smaller or less important than it actually is